Anti-freezing and heat-insulating device for flood discharge culvert in frozen soil region

Abstract

The utility model provides an anti-freezing and heat-preserving device for a flood discharge culvert in a frozen soil area, and belongs to the field of culvert anti-freezing and heat-preserving devices. The problems that when the temperature of an existing flood discharge culvert is reduced to 0 DEG C, concrete on the inner wall of the culvert cracks due to frost heaving, and normal use is affected are solved. Comprising a scaffold arranged at a culvert opening, a winding device and a heat preservation curtain, the scaffold is fixed to the outer earth surface of the culvert opening, the winding device is fixed to a bearing plate at the upper end of the scaffold, the heat preservation curtain is wound in the winding device, the outer edge of the heat preservation curtain is flush with the earth surface, and the heat preservation curtain is fixed to the scaffold through a plurality of limiting pieces. The device can be placed at a culvert opening of a downwind opening or openings in the two sides for a long time, and can also be detached and stored to be used for reducing the possibility that a ventilation channel is formed in the culvert, so that the temperature in the culvert is rapidly reduced, the heat preservation and anti-freezing effects are achieved, and the heat preservation effect of the culvert is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of culvert antifreeze and heat preservation devices, in particular to an antifreeze and heat preservation device for a flood discharge culvert in a frozen soil area. Background Art

[0002] For permafrost areas, every winter, severe cold weather and strong winds seriously affect the concrete of the walls of the project's spillway culverts. Since there is no shelter at the entrance of the spillway culvert, whenever it is windy, the wind will pass through the downstream entrance to the upstream entrance, and a ventilation channel will be formed in the culvert, causing the temperature in the culvert to drop sharply. The water seeping from the drainage holes in the culvert condenses into ice, causing frost heave damage to the concrete of the culvert wall, and the sudden drop in temperature will accelerate the speed of frost heave damage to the concrete. This is because, during the pouring and solidification process of concrete, due to the partial separation of water in the concrete, a large number of small and interconnected pores are formed inside. When these pores are filled with water to saturation, they begin to freeze at 0°C, blocking the openings of the concrete pores connected to the outside world. After the water condenses into ice, the volume begins to expand, and a corresponding amount of water is squeezed into the pores of the concrete, causing the pores to be under pressure. This pressure will cause the concrete to expand and crack, and the melted concrete cannot return to its original state. After multiple cycles, the concrete loses its bearing capacity, and the cost of repairing the culvert is relatively large. Therefore, it is necessary to provide a thermal insulation and antifreeze device at the entrance of the culvert. Utility Model Content

[0003] The technical problems to be solved by the utility model are:

[0004] In order to solve the problem that when the temperature of the existing flood discharge culvert drops to 0℃, the concrete on the inner wall of the culvert will expand and crack, affecting its normal use.

[0005] The utility model adopts the following technical solutions to solve the above technical problems:

[0006] The utility model provides an antifreeze and heat-insulating device for a flood discharge culvert in a frozen soil area, comprising a scaffold, a winding device and a heat-insulating curtain arranged at the entrance of the culvert, wherein the scaffold is fixed on the external surface of the entrance of the culvert, a load-bearing plate is arranged on the upper end of the scaffold, a winding device is fixed on the load-bearing plate, a heat-insulating curtain is wound in the winding device, and in an initial state, the heat-insulating curtain is stored in the winding device; when in use, the heat-insulating curtain is released from the winding device, the outer edge of the heat-insulating curtain is flush with the ground surface, and the heat-insulating curtain is fixed on the scaffold by a plurality of limit members.

[0007] Furthermore, the scaffolding includes two rows of parallel ground-type scaffolding units, each scaffolding unit includes horizontal bars and vertical bars that are perpendicularly arranged and evenly distributed, the connecting nodes between the horizontal bars and the vertical bars are welded, and horizontal braces are provided at corresponding nodes between the two scaffolding units.

[0008] Furthermore, the node of the scaffolding unit on one side is connected to the next node of the corresponding node on the same vertical rod of the scaffolding unit on the other side through a diagonal brace, or the node of the scaffolding unit on one side is connected to the previous node of the corresponding node on the same vertical rod of the scaffolding unit on the other side through a diagonal brace.

[0009] Furthermore, an anchoring tip is provided at the lower end of each vertical rod.

[0010] Furthermore, the winding device includes a cylindrical and hollow winding shell, and the winding shaft passes through the winding shell on one side and is rotatably connected to the winding shell on the other side at the center of the circle, the winding shaft coincides with the central axis of the winding shell, and a Z-shaped winding handle is provided at the end of the winding shaft outside the winding shell, and a winding outlet is provided at the bottom of the winding shell near the front side, one end of the thermal insulation curtain is fixed on the winding shaft, and the other end of the thermal insulation curtain is wrapped around the winding shaft and extends out of the winding outlet.

[0011] Furthermore, the thermal insulation curtain comprises a plurality of thermal insulation curtain units which are sewn together at the edges, and a plurality of evenly distributed limiting holes are provided on the thermal insulation curtain, which is fixed on the scaffolding after a limiting piece passes through the limiting holes.

[0012] Furthermore, edge sealing is provided on both sides of the thermal insulation curtain, and a limiting plate is provided on the bottom edge of the thermal insulation curtain on the side extending from the winding outlet, and a number of evenly distributed limiting holes are provided on the edge sealing and the limiting plate for fixing the edge of the thermal insulation curtain on the scaffolding.

[0013] Furthermore, the positions of the limiting holes correspond one-to-one to the node positions on the scaffold.

[0014] Furthermore, the limiting member may be an iron wire, and each limiting hole includes two limiting hole units. Two ends of the iron wire respectively pass through the two limiting hole units and are then tied to the nodes of the scaffold.

[0015] Furthermore, at least one uniformly distributed transverse reinforcing rib may be sewn onto the outer surface of the thermal insulation curtain, and the reinforcing rib may be a steel plate or hard plastic.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model discloses an antifreeze and heat preservation device for a flood discharge culvert in a frozen soil area, comprising a scaffold, a reeling device and a heat preservation curtain arranged at the entrance of the culvert, the scaffold being fixed on the external surface of the entrance of the culvert, a reeling device being fixed on the upper load-bearing plate of the scaffold, a heat preservation curtain being reeled in the reeling device, and the heat preservation curtain being stored in the reeling device in an initial state; when in use, the heat preservation curtain is released from the reeling device, the outer edge of the heat preservation curtain is flush with the ground surface, and the heat preservation curtain is fixed to the scaffold through a plurality of limit members;

[0018] The antifreeze and heat preservation device can be placed at the culvert entrance at the downwind outlet or at the entrances on both sides of the flood discharge culvert for a long time. When in a warm climate, the heat preservation curtain is rolled up in the rolling device and does not affect the normal flood discharge. If the flood discharge is large and the impact on the scaffolding is too strong, the device can be disassembled and stored. When the temperature is about to reach 0℃, the device can be reinstalled and the heat preservation curtain can be released and fixed on the scaffolding to reduce the formation of ventilation channels in the culvert and the rapid drop in temperature in the culvert. It plays a role in heat preservation and antifreeze, improves the heat preservation effect of the culvert, and the device will not cause any damage to the culvert itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional view of a heat preservation curtain of an antifreeze and heat preservation device for a flood discharge culvert in a frozen soil area according to an embodiment of the utility model when the heat preservation curtain is retracted;

[0020] Figure 2 A three-dimensional view of a heat preservation curtain of an antifreeze and heat preservation device for a flood discharge culvert in a frozen soil area according to an embodiment of the utility model when it is lowered;

[0021] Figure 3 A three-dimensional diagram of a scaffold in an embodiment of the utility model;

[0022] Figure 4 It is a cross-sectional view of the winding device in the embodiment of the utility model;

[0023] Figure 5 It is a structural diagram of the thermal insulation curtain in the embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1. Winding device; 2. Culvert opening; 3. Scaffolding; 4. Insulation curtain; 5. Limiting piece; 6. Culvert expansion wall; 7. Culvert upper wall; 101. Winding shell; 102. Winding shaft; 103. Winding handle; 104. Winding outlet; 301. Load-bearing plate; 302. Vertical bar; 303. Cross bar; 304. Diagonal brace; 305. Cross brace; 306. Anchoring tip; 401. Insulation curtain unit; 402. Edge sealing; 403. Limiting hole; 404. Limiting plate; 405. Reinforcement rib. DETAILED DESCRIPTION

[0026] In the description of the present utility model, it should be noted that the terminology nouns in the various embodiments, such as words indicating directions such as "upper", "lower", "front", "back", "left", "right", etc., are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the referred elements and devices must be operated according to the specific directions and specified operations and methods and structures in the specification. Such directional nouns do not constitute limitations on the present utility model.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] Specific implementation plan 1: Combine Figures 1 to 5 As shown, the utility model provides an antifreeze and heat preservation device for a flood discharge culvert in a frozen soil area, comprising a scaffolding 3, a winding device 1 and a heat preservation curtain 4 arranged at a culvert opening 2, the scaffolding 3 being fixed on the external surface of the culvert opening 2, a load-bearing plate 301 being provided at the upper end of the scaffolding 3, a winding device 1 being fixed on the load-bearing plate 301, a heat preservation curtain 4 being wound in the winding device 1, and in an initial state, the heat preservation curtain 4 is stored in the winding device 1; when in use, the heat preservation curtain 4 is released from the winding device 1, the outer edge of the heat preservation curtain 4 is flush with the ground surface, and the heat preservation curtain 4 is fixed to the scaffolding 3 by a plurality of limit members 5.

[0029] It should be noted that the thermal insulation curtain 4 in the present embodiment does not completely seal the culvert opening 2, but leaves gaps on both sides of the scaffolding 3, but this does not affect the thermal insulation curtain 4 having a certain antifreeze and heat preservation effect. The setting of the thermal insulation curtain 4 can play a wind-resistant role, reduce wind speed, avoid rapid cooling in the culvert, and extend the interval for repairing the concrete of the inner wall of the culvert; and the penetration of the limit member 5 will open a number of limit holes 403 on the thermal insulation curtain 4. When the wind direction is perpendicular to the thermal insulation curtain 4, the setting of the limit member 5 will disperse the wind pressure borne by the thermal insulation curtain 4 to each limit hole 403, ensuring that the entire thermal insulation curtain 4 is evenly stressed, so that the thermal insulation curtain 4 can withstand greater wind loads and extend the service life of the thermal insulation curtain 4.

[0030] The scaffolding 3 comprises two rows of parallel floor-standing scaffolding units, each scaffolding unit comprises a horizontal bar 303 and a vertical bar 302 which are arranged perpendicular to each other and evenly distributed, the connection nodes between the horizontal bar 303 and the vertical bar 302 are welded, and a horizontal brace 305 is arranged at the corresponding nodes between the two scaffolding units, and the node of the scaffolding unit on one side is connected to the next node of the corresponding node on the same vertical bar 302 of the scaffolding unit on the other side through a diagonal brace 304, or the node of the scaffolding unit on one side is connected to the previous node of the corresponding node on the same vertical bar 302 of the scaffolding unit on the other side through a diagonal brace 304 (not shown in the figure), and the arrangement of the horizontal brace 305 and the diagonal brace 304 serves to enhance the stability of the scaffolding 3.

[0031] The scaffold 3 may be a steel scaffold, and an anti-rust coating and an anti-corrosion coating are provided on the scaffold 3; an anchoring tip 306 is provided at the lower end of each vertical rod 302 for inserting into the ground surface to fix the scaffold 3, or a fixing seat is provided at the bottom of each vertical rod 302, and the fixing seat is a horizontal plate with an anchoring hole, and the scaffold 3 is fixed by inserting an anchoring rod into the anchoring hole. The fixing seat and the anchoring rod are both commonly used existing technologies.

[0032] When the scaffolding 3 is installed, the end of the crossbar 303 does not contact the culvert expansion wall 6, and the upper end of the load-bearing plate 301 is flush with the culvert upper wall 7 or the upper end of the load-bearing wall is higher than the culvert upper wall 7.

[0033] The winding device 1 includes a cylindrical and hollow winding shell 101, a winding shaft 102 passes through the winding shell 101 on one side and is rotatably connected to the center of the winding shell 101 on the other side, the winding shaft 102 coincides with the central axis of the winding shell 101, and the winding shaft 102 located outside the winding shell 101 is provided with a Z-shaped winding handle 103, and the bottom of the winding shell 101 is provided with a winding outlet 104 near the front side, and one end of the thermal insulation curtain 4 is fixed on the winding shaft 102, and the other end of the thermal insulation curtain 4 extends out of the winding outlet 104 after being wound on the winding shaft 102. When in use, the thermal insulation curtain 4 is wound or released by rotating the winding handle 103. Since the winding device 1 needs to be placed outdoors for a long time, manual winding not only avoids the disadvantage of inconvenience in charging, but also saves costs.

[0034] The thermal insulation curtain 4 includes a plurality of thermal insulation curtain units 401 which are sewn together at the edges, and edge sealing 402 is provided on both sides of the thermal insulation curtain 4. A limiting plate 404 is provided on the side extending from the winding outlet 104. The side width of the limiting plate 404 is greater than the width of the winding outlet 104 to avoid the thermal insulation curtain 4 being completely wound up in the winding device 1 and difficult to take out; the thermal insulation curtain 4 is provided with a plurality of limiting holes 403, and is fixed to the scaffolding 3 after the limiting member 5 passes through the limiting holes 403. The edge sealing 402 and the limiting plate 404 are both provided with a plurality of limiting holes 403, which are used to fix the edges of the thermal insulation curtain 4 to the scaffolding 3.

[0035] The positions of the limiting holes 403 correspond one-to-one to the nodes on the scaffolding 3 , the limiting member 5 may be an iron wire, each limiting hole 403 includes two limiting hole 403 units, and both sides of the iron wire pass through the two limiting hole 403 units respectively and are tied to the nodes of the scaffolding 3 .

[0036] The width of the thermal insulation curtain 4 is greater than the diameter of the culvert opening 2, and is used to completely cover the culvert opening 2; the width of the thermal insulation curtain 4 can be the sum of the length of the scaffolding 3 and the width of the two side edges. The lowered thermal insulation curtain 4 can wrap the front and two side edges of the entire scaffolding 3, and the thermal insulation curtain 4 is fixed by the limiter 5, so that the thermal insulation protection effect is better.

[0037] The outer surface of the thermal insulation curtain 4 may be sewn with transverse reinforcing ribs 405, which may be steel plates or hard plastics to enhance the stability of the thermal insulation curtain 4; the thermal insulation curtain unit 401 may be a tarpaulin thermal insulation unit or other materials with wind resistance. The thickness of the thermal insulation curtain sewn with reinforcing ribs 405 is less than the width of the winding outlet 104.

[0038] Although the utility model is disclosed as above, the protection scope of the utility model is not limited to this. Those skilled in the art of the utility model can make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. An antifreeze and heat preservation device for a flood discharge culvert in a frozen soil area, characterized in that: The invention comprises a scaffold (3), a reeling device (1) and a thermal insulation curtain (4) arranged at a culvert opening (2); the scaffold (3) is fixed on the external surface of the culvert opening (2); a load-bearing plate (301) is provided at the upper end of the scaffold (3); a reeling device (1) is fixed on the load-bearing plate (301); a thermal insulation curtain (4) is reeled in the reeling device (1); in an initial state, the thermal insulation curtain (4) is stored in the reeling device (1); when in use, the thermal insulation curtain (4) is released from the reeling device (1); the outer edge of the thermal insulation curtain (4) is flush with the ground surface; and the thermal insulation curtain (4) is fixed to the scaffold (3) by means of a plurality of limit members (5).

2. The antifreeze and heat preservation device for flood discharge culverts in frozen soil areas according to claim 1, characterized in that: The scaffold (3) comprises two rows of parallel ground-type scaffold units, each of which comprises horizontal bars (303) and vertical bars (302) which are arranged perpendicular to each other and evenly distributed, the connecting nodes between the horizontal bars (303) and the vertical bars (302) are welded, and horizontal braces (305) are provided at corresponding nodes between the two scaffold units.

3. The antifreeze and heat preservation device for flood discharge culvert in frozen soil area according to claim 2, characterized in that: The node of the scaffolding unit on one side is connected to the next node of the corresponding node on the same vertical rod (302) of the scaffolding unit on the other side through a diagonal brace (304), or the node of the scaffolding unit on one side is connected to the previous node of the corresponding node on the same vertical rod (302) of the scaffolding unit on the other side through a diagonal brace (304).

4. The antifreeze and heat preservation device for flood discharge culvert in frozen soil area according to claim 3, characterized in that: An anchoring tip (306) is provided at the lower end of each vertical rod (302).

5. The antifreeze and heat preservation device for flood discharge culvert in frozen soil area according to claim 2, characterized in that: The winding device (1) comprises a cylindrical and hollow winding shell (101); a winding shaft (102) passes through the winding shell (101) on one side and is rotatably connected to the winding shell (101) on the other side at the center of the circle; the winding shaft (102) coincides with the central axis of the winding shell (101); a Z-shaped winding handle (103) is provided at the end of the winding shaft (102) outside the winding shell (101); a winding outlet (104) is provided at the bottom of the winding shell (101) near the front side; one end of the thermal insulation curtain (4) is fixed on the winding shaft (102); the other end of the thermal insulation curtain (4) is wound around the winding shaft (102) and extends out of the winding outlet (104).

6. The antifreeze and heat preservation device for flood discharge culvert in frozen soil area according to claim 5, characterized in that: The thermal insulation curtain (4) comprises a plurality of thermal insulation curtain units (401) whose edges are sewn together. The thermal insulation curtain (4) is provided with a plurality of evenly distributed limiting holes (403). A limiting member (5) passes through the limiting holes (403) and is fixed to the scaffold (3).

7. The antifreeze and heat preservation device for flood discharge culvert in frozen soil area according to claim 6, characterized in that: The thermal insulation curtain (4) is provided with edge seals (402) on both sides, and a limiting plate (404) is provided on the bottom edge of the thermal insulation curtain (4) on one side extending out of the winding outlet (104). The edge seals (402) and the limiting plate (404) are provided with a plurality of evenly distributed limiting holes (403) for fixing the edge of the thermal insulation curtain (4) on the scaffolding (3).

8. The antifreeze and heat preservation device for flood discharge culverts in frozen soil areas according to claim 7, characterized in that: The positions of the limiting holes (403) correspond one-to-one to the node positions on the scaffold (3).

9. The antifreeze and heat preservation device for flood discharge culvert in frozen soil area according to claim 8, characterized in that: The limiting member (5) may be an iron wire, and each limiting hole (403) includes two limiting hole units. The two ends of the iron wire respectively pass through the two limiting hole units and are then tied to the nodes of the scaffold (3).

10. The antifreeze and heat preservation device for flood discharge culvert in frozen soil area according to claim 9, characterized in that: The outer surface of the thermal insulation curtain (4) may be sewn with at least one uniformly distributed transverse reinforcing rib (405), and the reinforcing rib (405) may be a steel plate or hard plastic.

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